Electronic apparatus, cooling module, and heat sink

Abstract

An electronic apparatus includes: a chassis; a heating element; a cooling module having a fan, a heat sink, and a heat transport device, the cooling module being configured to cool the heating element. The heat sink includes: a base plate; a plurality of fins standing from the base plate and placed with a gap between the fins to define an air channel through which air from the air outlet flows; and an inclined plate dividing the air channel in two stages in the standing direction of the fins and being gradually inclined from upstream to downstream of the air channel.

The invention claimed is: 
     
       1. An electronic apparatus comprising:
 a chassis; 
 a heating element in the chassis; and 
 a cooling module having a fan, a heat sink facing an air outlet of the fan, and a heat transport device that transports heat generated by the heating element to the heat sink, the cooling module being configured to cool the heating element, 
 the heat sink comprising:
 a base plate; 
 a plurality of fins standing from the base plate and having a gap between the fins to define an air channel through which air from the air outlet flows; and 
 an inclined plate dividing the air channel in two stages in the standing direction of the fins and being inclined from upstream to downstream of the air channel; 
 
 a lid with a display; and 
 a hinge device connecting the chassis and the lid in a relatively rotatable manner, 
 wherein 
 the chassis has a chassis air outlet on one side face, the chassis air outlet configured for discharging air passing through the air channel of the heat sink to outside, 
 the hinge device includes:
 a shaft configured to function as a rotary shaft between the chassis and the lid; and 
 a hinge housing protruding from a surface of the lid, accommodating one end of the shaft, and being disposed downstream of the chassis air outlet to cover a portion of the chassis air outlet, and 
 wherein, when the lid is open from the chassis, there is an opening between an end face of the hinge housing and an edge of the chassis air outlet to allow air from the chassis air outlet to pass through, and the inclined plate is configured to distribute air toward the opening. 
 
 
     
     
       2. The electronic apparatus according to  claim 1 , wherein
 the inclined plate is in a plane that intersects the end face of the hinge housing. 
 
     
     
       3. The electronic apparatus according to  claim 1 , wherein
 the chassis includes a cover member that defines a top or bottom face of the chassis, 
 the heat sink further includes a top plate at a standing end of the fins and parallel to the base plate, 
 the top plate is adjacent to an inner face of the cover member and extends along the inner face, and 
 the inclined plate has a face that is inclined relative to the base plate and the top plate. 
 
     
     
       4. A cooling module comprising:
 a fan; 
 a heat sink that faces an air outlet of the fan; and 
 a heat transport device connected to the heat sink, 
 the heat sink comprising:
 a base plate; 
 a plurality of fins standing from the base plate and having a gap between the fins to define an air channel through which air from the air outlet flows; and 
 an inclined plate dividing the air channel in two stages in the standing direction of the fins and being inclined from upstream to downstream of the air channel; 
 
 a chassis; 
 a lid with a display; and 
 a hinge device connecting the chassis and the lid in a relatively rotatable manner, 
 wherein 
 the chassis has a chassis air outlet on one side face, the chassis air outlet configured for discharging air passing through the air channel of the heat sink to outside, 
 the hinge device includes:
 a shaft configured to function as a rotary shaft between the chassis and the lid; and 
 a hinge housing protruding from a surface of the lid, accommodating one end of the shaft, and being disposed downstream of the chassis air outlet to cover a portion of the chassis air outlet, and 
 wherein, when the lid is open from the chassis, there is an opening between an end face of the hinge housing and an edge of the chassis air outlet to allow air from the chassis air outlet to pass through, and the inclined plate is configured to distribute air toward the opening.